n = int(input())
if n>=400 and n<=599:
  print(8)
elif n>=600 and n<=799:
  print(7)
elif n>=800 and n<=999:
  print(6)
elif n>=1000 and n<=1199:
  print(5)
elif n>=1200 and n<=1399:
  print(4)
elif n>=1400 and n<=1599:
  print(3)
elif n>=1600 and n<=1799:
  print(2)
elif n>=1800 and n<=1999:
  print(1) n = int(input()) n int(input()) int input() input if n>=400 and n<=599:
  print(8)
elif n>=600 and n<=799:
  print(7)
elif n>=800 and n<=999:
  print(6)
elif n>=1000 and n<=1199:
  print(5)
elif n>=1200 and n<=1399:
  print(4)
elif n>=1400 and n<=1599:
  print(3)
elif n>=1600 and n<=1799:
  print(2)
elif n>=1800 and n<=1999:
  print(1) n>=400 and n<=599 n>=400 n 400 n<=599 n 599 print(8) print 8 elif n>=600 and n<=799:
  print(7) n>=600 and n<=799 n>=600 n 600 n<=799 n 799 print(7) print 7 elif n>=800 and n<=999:
  print(6) n>=800 and n<=999 n>=800 n 800 n<=999 n 999 print(6) print 6 elif n>=1000 and n<=1199:
  print(5) n>=1000 and n<=1199 n>=1000 n 1000 n<=1199 n 1199 print(5) print 5 elif n>=1200 and n<=1399:
  print(4) n>=1200 and n<=1399 n>=1200 n 1200 n<=1399 n 1399 print(4) print 4 elif n>=1400 and n<=1599:
  print(3) n>=1400 and n<=1599 n>=1400 n 1400 n<=1599 n 1599 print(3) print 3 elif n>=1600 and n<=1799:
  print(2) n>=1600 and n<=1799 n>=1600 n 1600 n<=1799 n 1799 print(2) print 2 elif n>=1800 and n<=1999:
  print(1) n>=1800 and n<=1999 n>=1800 n 1800 n<=1999 n 1999 print(1) print 1 n = int(input()) int(input()) n
n = int(input())
if n>=400 and n<=599:
  print(8)
elif n>=600 and n<=799:
  print(7)
elif n>=800 and n<=999:
  print(6)
elif n>=1000 and n<=1199:
  print(5)
elif n>=1200 and n<=1399:
  print(4)
elif n>=1400 and n<=1599:
  print(3)
elif n>=1600 and n<=1799:
  print(2)
elif n>=1800 and n<=1999:
  print(1)